#garfield Logs

Jan 22 2022

05:01 AM Tom_L: morning
05:17 AM rue_mohr: I'm still up
05:17 AM rue_mohr: I dont know how I work
05:18 AM rue_mohr: I shouldn't be able to be awake
05:18 AM rue_mohr: I'm writing code for that motor thing
05:18 AM rue_mohr: its going good
05:18 AM rue_mohr: esp for 3am
01:07 PM rue_mohr: so, part of the issue here is a really soft wakeup
01:39 PM rue_mohr: ah, before this I was working on the laser meter display
01:39 PM rue_mohr: trying not to lose track of things
01:52 PM rue_mohr: Tom_L, what about using the axis to make textured rollers?
01:52 PM rue_mohr: for patterning things
02:19 PM rue_shop3: heh, if I trigger the scope off the reject pulse, I get to see all the rejected sample periods where there was commutation noise
03:03 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1220729.jpg
03:03 PM rue_mohr: work!
03:03 PM rue_mohr: s
03:04 PM rue_mohr: I got some smaller rivets and need to make a smaller mandrill for them
03:28 PM rue_mohr: 2238
03:58 PM rue_mohr: ok, closed loop compiles....
04:15 PM rue_shop3: huh, I misplaced one of your programmers
04:30 PM Tom_L: oh my god!
04:30 PM Tom_L: good you have more than one i suppose...
04:37 PM rue_mohr: I turned a u4 board into one
04:37 PM rue_mohr: a 10 pin,
04:38 PM rue_mohr: you ultimatly sent me two of yours :)
04:38 PM rue_mohr: I found it
04:38 PM rue_mohr: I'd been using it to beat the arduino on the 3d printer
04:38 PM Tom_L: phew!
04:38 PM Tom_L: i think i still have a few
04:39 PM rue_mohr: I'm gonna go try the closed loop code
04:39 PM Tom_L: i may still have at least 1 and maybe 2 rolls of that ribbon too
04:39 PM Tom_L: 10 pin
04:39 PM rue_mohr: it should do speed regulation
04:40 PM rue_mohr: I have a 10 pin to 6 pin adapter of yours too
04:40 PM Tom_L: yep i have several of those boards somewhere
04:40 PM rue_mohr: the bootloader on the arduino I am using doesn't want to go
04:41 PM Tom_L: should send them to you and you can hand em out as door prizes for those that visit your shop :)
04:41 PM rue_mohr: so I just been using your programmer
04:41 PM rue_mohr: hah
04:41 PM rue_mohr: moon is the only one close to the skill level for that
04:41 PM Tom_L: i got flat pcb un-attached of something or other too
04:41 PM Tom_L: maybe the u2 experimenter?
04:42 PM rue_mohr: ok I'm go see if my proportionate code works
04:44 PM rue_shop3: they dont put a pin1 on the arduino isp headers
04:46 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Boards_U2.jpg
04:47 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Boards1.jpg
04:57 PM rue_mohr: wow all sorts
04:57 PM rue_mohr: people are fighting each other for chips now eh?
04:57 PM rue_mohr: you auction those atmega you have and you might get a surprize
05:00 PM Tom_L: better to have than not to have?
05:04 PM rue_mohr: its halarious
05:04 PM rue_mohr: they insist on not buying the chips until they have the boards made
05:04 PM Tom_L: i'm not gonna mess with em
05:04 PM rue_mohr: so, they look at whats available, design the system, then make the boards and try to buy the chips
05:05 PM Tom_L: if you run low on U2 though let me know...
05:05 PM rue_mohr: at which time the chips that were available when they started the design process aren't anymore
05:05 PM rue_mohr: and then they complain about it
05:05 PM rue_mohr: they WILL NOT buy the chips at the set-out of the project
05:06 PM rue_mohr: they get caught in a loop continiously redesigning boards for chips that aren't available when they finish the design
05:06 PM rue_mohr: I'm getting quite a laugh out of it
05:06 PM rue_mohr: my closed loop didn't work
05:09 PM rue_mohr: oooh ohohoh, I made the reading signed
05:19 PM rue_shop3: its ... working?
06:33 PM rue_mohr: now to try position control
06:37 PM Tom_L: doing patterns might be a challenge because of the wrapped geometry
06:39 PM rue_mohr: sure
06:39 PM rue_mohr: someone on twitter was doing a feather using a 3d printed roller
06:49 PM Tom_L: how hard would it be to draw a wrapped feather in openscad?
06:53 PM rue_shop3: hard
06:53 PM rue_shop3: I think
06:53 PM Tom_L: i know it would be in any other cad too
06:53 PM Tom_L: cad isn't 'artsy'
06:55 PM rue_shop3: ok I need to fix the tea machine
06:56 PM rue_shop3: and make an adapter for work
06:56 PM Tom_L: did you make the battery pack?
06:56 PM rue_shop3: yes, last weekend
06:56 PM rue_shop3: it worked
06:58 PM Tom_L: still have spare u2 experimenter or did you use them?
07:12 PM rue_shop3: oh,
07:13 PM rue_shop3: I dont have to make the adatper, the one I got is wrong
07:13 PM rue_shop3: it should have been a different one
07:13 PM rue_shop3: that would have fit
07:13 PM rue_shop3: I have...
07:14 PM rue_shop3: yes, 2 U2 boards
07:14 PM rue_shop3: cause I used the u4 for a programmer :)
07:14 PM rue_shop3: 10 pin
07:14 PM rue_shop3: oh I have 4 u2
07:15 PM Tom_L: i thought you had a couple...
07:38 PM rue_mohr: hmm
07:38 PM rue_mohr: I think
07:38 PM rue_mohr: thats the code to make it control position
07:41 PM bakanoyue: hey rue, you know there is a fire at jsmed' tonight ;)
07:42 PM bakanoyue: james'
07:46 PM rue_shop3: oh he lit the fireplace again eh?
07:46 PM rue_shop3: the sensorless motor positioning is working!
08:43 PM Tom_L: :)
08:44 PM Tom_L: video or it never happened!
08:44 PM rue_shop3: hah, stand by
09:41 PM rue_mohr: https://twitter.com/RueNahcMohr/status/1485069935789285378
09:41 PM rue_mohr: does that work?
10:04 PM Tom_L: yup
10:04 PM Tom_L: cool
10:11 PM rue_mohr: I wouldn't have beleived it could be done ya know